diff options
Diffstat (limited to 'include/crypto')
-rw-r--r-- | include/crypto/poly1305.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h index 46f834e231..a73c2311d4 100644 --- a/include/crypto/poly1305.h +++ b/include/crypto/poly1305.h @@ -15,6 +15,25 @@ typedef struct poly1305_context POLY1305; +typedef void (*poly1305_blocks_f) (void *ctx, const unsigned char *inp, + size_t len, unsigned int padbit); +typedef void (*poly1305_emit_f) (void *ctx, unsigned char mac[16], + const unsigned int nonce[4]); + +struct poly1305_context { + double opaque[24]; /* large enough to hold internal state, declared + * 'double' to ensure at least 64-bit invariant + * alignment across all platforms and + * configurations */ + unsigned int nonce[4]; + unsigned char data[POLY1305_BLOCK_SIZE]; + size_t num; + struct { + poly1305_blocks_f blocks; + poly1305_emit_f emit; + } func; +}; + size_t Poly1305_ctx_size(void); void Poly1305_Init(POLY1305 *ctx, const unsigned char key[32]); void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len); |